Speed-increasing means for boats



Aug. 10 1926. v 1,595,888 A. o. STANLEY SPEED INCREASING MEANS FOR BOATS:

Filed April 2, :1925 2 'sheets-sheet 2 INVENTOR. 405 r//v 0.' 5 7AM/415V ATTO EY.

Patented Aug. l0, 1926.

AUSTIN O. STANLEY, OF DETROIT, MICHIGAN.

Application inea April a, 1925. sei-iai No. 20,066.

rlhis invention relates to means for increasing the speed of boats of all sizes by diminishing the frictional resistance offered by the water through the creation of a suction and oblique currents adjacent the bow and sides of the boat, and by utilizing the driving power of the water e'ddying in to lill the suction so created. y

The principal object of'my invention Yis the provision of mechanism carried by a boat for receiving water from in front of the boat and expelling the water forcibly and in laterally oblique directions just rearwar ly of the bow to thereby create currents tending to move away from the sides of the boat the water that would ordinarily form a resistance to the passage of the boat therethrough. Currents of water moving substantially in the same direction as the boat then eddy in to replace the water driven away from the bow and sides of the boat and tend to sweep the vessel forwardly, whereby the boat is moved ahead faster than it would be driven by its propeller actingalone.4 y

nother obj ect of my invention is the arrangement of pumps and outlet pipes adjacent the bow of the boat whereby water will be expelled at both sides of the vessel in a series of jets extending from the water line to adjacent the lowermost portion of the boat.

Other objects and advantages will be -apparent from the following description, wherein reference is made to the accompanying drawings illustrating a preferred embodiment of my invention and wherein similar reference numerals designate sim1 lar parts throughout the several views.

In the drawings: l

Fig. 1 vis a side elevation of avessel equipped with my improved speed increasing means.

Fig. 2 is an enlarged detail elevation of the bow portion7 and showing the arrangement of the inlet pipe and outlet pipes of my improved apparatus at one side of the vessel. n

Fig. Sis a detail cross section taken substantially on the line 3--3 of Fig. 2, and

Fig. 4L is a detail vsection taken substantially on the line l4 of Fig. l.

Referring now to the drawings, the y.nu-

meral 5 designates a vessel of any desired size and contour equipped with some form of propelling means .herein shown as a propeller G arranged adjacent the rear of the boat. It will be understood that-the showing in Fig. 1 is merely for purposes of exempliiication, and that my improved speed increasing means is adapted for use with vessels equipped with any desired type of propelling means, utilizing manual or wind power or various forms of engines or tur bines to drive mechanically actuated propelling devices. The propeller 6 herein shown is adapted to move the vessel at a predetermined rate of speed when my improved speed increasing means is not in operation,

and it is to be understood that the propeller aids at all times in the propulsion of the boat and that my improved apparatus is auxiliary to the usual propelling means of the vessel.

My improved speed increasing means will now be described: At the forward extremity of the vessel is mounted a pump 7 of any desired type adapted to` receive water from in front of the vessel through the inlet pipe 8 and expel such water through a o plurality of outlet pipes 9 and l0 arranged on both 'sides of the vessel. The outlet pipes are preferably provided with nozzles 9a and 10a extending from adjacent the water line to adjacent the lowermost portion of the vessel substantially as shown in Fig. l7 such nozzles being preferably shaped to closely parallel the sides of the vessel. Each nozzle is herein shown as provided with a plurality of spaced apertures 9b and 10b through which the water from the pump is directed outwardly in a series of jets adjacent the entire submerged portion of the vessel. rl`hese apertures are so located in the nozzles 9 and 10 that the water issuing` therefrom will be directed rearwardly or the boat and in divergent streams angularly away from the longitudinal axis 'of the boat. Thev arrows in Fig. Sillustrate the movement of the water issuing from the apertures 9b and 10b in the nozzles 9 and l0. These streams of water forcibly ejected from theA several jets in the nozzles on both sides of the vessel will set in motion the water adjacent the sides of the vessel that would ordinarily form a resistance to the passage of the vessel therethrough, and tends to move such'otherwise resisting water away from the sides of the vessel so as to form a suction adjacent the forward portion of the boat, or at least the major poi tion thereof, into which vacuum the vessel 4 rected toward the rear of the boat and is moving4 with diminished 'frictional resistance. The water adjacent the rear halt ot the vessel tends to eddy into the vacuum thus formed by the divergent outward movement or the water at the forward half of the vessel, and in so doing moves suostantially in the same direction asthe boat, and accordingly, sweeps the boat forwardly with it with a force that works in addition to the usual driving force of the propeller G.

The pumpV 7 is herein shown as oi' the centrifuga-l type with the inlet pipe dividing into two portions 8 and 8h leadingl respectively to the ends of the pump portion, while the outlet pipesare shown as leading from the periphery of the pump casing adjacent its ends. A portion ot the issuing` water is directed through the relatively small pipes to the sides oit the vessel closely adjacent the foremost point ol' the boat while the major portion ot the water issuing from the pump is directed through the larger pipes 9' to the sides ci the boat more nearly adjacent the widest portion' of the boat. In this Amanner currents are set up in the surrounding waiter to move away the otherwise resisting water from all the forward portion of the boat except that relatively small portion between the nozzles 10a and the foremost point of the boat The water issuing from the smaller nozzles 10a diverge from the longitudinal axis ot theV boat at a greater angle than does the water issuing from the larger nozzles 9a, as best shown in Fig. 3. rI'his permits the smaller nozzles to set in motion the wa'- ter adjacent the bow of the boat so that it is in motion away from the sides of the boat when it is later impinged by the water issuing from the larger nozzles 9 after the boat has moved forward under the impulse of the propeller 6 and the eddying currents hereinb'efore referred to. The larger volume of water issuing from the4 nozzles 9a adjacent the wider portion of the vessel serves to set in motion that larger body of water that would be contacted by the wider portion of the vessel and it has been found that such larger body of water is more readily moved when the divergent currents set up hy the smaller nozzles 10 have started the iow of adjacent water away from the sides ot the vessel. As herein shown I have providedV a protective covering 11 to prevent the resistant water from damaging the outlet pipes 9 and 10, and suitable elongated apertures 12 and 13 are provided in this protect-ive covering for the issuance of the water from the nozzles 9a and 10Z1 respectively. These apertures 12 and 13 are dipermit the outflow of the pumped water in the desired directions, while the outermost. walls of siic'h apertures are arranged to divertthe rsistant water from the iizzles` As best shown in Figs, 2 and el, I also provide apertures 14 adjacent the lowei1 portion of the protective covering 1l to admit water tothe interior of the protective casing so that the issuing water will carry with it a substantially solid body of water. Vanes 15 are preferably arranged directly above the apertures 14 to utilize the water coming through the apertures 14 to litt the bow ot the vessel.

l/Vhile it will be apparent that the illustratody embodiment of my invention herein disclosed' is well calculated to adequately tulll the objects and advantages primarily stated, it is to be understood that the invention is susceptible to variation, modilication and change within the spirit andL scope of the subjoined claims.

Having described my invention,Iclaim- 1. In combination with a vessel having a main propelling means, speed increasing means for the vessel including a pump mounted on the vessel, an intake pipe :tor the pump arranged tol receive water from in front of the vessel, and outlet pipes eX tending below the water line' rearwardly of the bow of the vessel 'and arranged to expel the water from the pump in divergent streams directed rearwardly of the vessel, said outlet pipes being provided withv a plurality of spaced apertures for directing jets of water froml adjacent the lowermost portion or the vessel to the water line.

2. In combination with a vessel having a main propelling means, speed increasing means for the vessel including a pump mounted on the vessel, an intake pipe for the pump arranged to receive water from in front orF the vessel, and outlet pipes having a plurality of spouts on each side ot the vessel extending below the water line rearwardly of the bow of the vessel and arranged to cxpel the water from the pump in divergent streams directed rearwardly of the vessel.

3. In combination with a vessel having a main propelling means, speed increasing means for the vessel including a pump mounted on the vessel, an intake pipe for the pump arranged to receive water from in front of the vessel, and outlet pipes having a plurality ot spouts on each side of the vessel extending below the water line rearwardly of the bow ofthe vessel and arranged to expel the water from the pump in divergent streams directed rearwardly of the vessel, said spouts having a plurality of spaced apertures extending from adjacent the lowermost portion of the boat to the water line.

4. In combination with a vessel having a main propelling means, speed increasing means for the r`vessel including a plurality of nozzles arranged below the water line at each side or the boat rearwardly. ofthe bow, and means for forcibly expelling water from said nozzles in divergent streams directed rearwardly of the vessel, said nozzles being provided with a plurality7 of spaced apertures extending from adjacent the lowermost portion of the vessel to adjacent the water line.

5. ln combination with a vessel having a main propelling means, speed increasing means for the vessel including a pair ot' spaced nozzles arranged below the water line at each side of the boat rearwardly ot the bow, and means for forcibly expelling water from said nozzles in divergent streams directed rearwardly ot the vessel, one nozzle of each pair being larger than the other and located closer to the widest portion of the boat.

6. ln combination with a vessel having a main propelling means, speed increasing)- means for the vessel including a plurality or nozzles arranged below the water line at each side oitl the boat rearwardly of the bow, means :tor forcibly expelling water from said nozzles in divergent streams directed rearwardly of the vessel, and a protective casing surrounding said nozzles and having elongated apertures therein through which the expelled water issues.

7. ln combination with a vessel having a main propelling means, speed increasing means Jfor the vessel including a plurality of nozzles arranged below the water line at each side ot the boat rearwardly of the bow, means for forcibly expelling water from said spouts in divergent streams directed rearwardly ot the vessel, a protective casing surrounding 'said nozzles and having elongated apertures therein through which the expelled water issues, said casing being also formed with inta-lie apertures forwardly of the nozzles, and inclined vanes n'iounted on the casing above said last mentioned apertures.

n witness whereof I hereunto set my hand.

AUSTIN O. STANLEY. 

